<template>
	<!-- 富文本 -->
	<div>
		<el-upload v-if="type === 'url'" :action="upload.url" :before-upload="handleBeforeUpload"
			:on-success="handleUploadSuccess" :on-error="handleUploadError" class="editor-img-uploader" name="file"
			:show-file-list="false" :headers="upload.headers">
			<i ref="uploadRef"></i>
		</el-upload>
	</div>
	<div class="editor">
		<quill-editor ref="quillEditorRef" v-model:content="content" content-type="html" :options="options" :style="styles"
			@text-change="(e) => $emit('update:modelValue', content)" />
	</div>
</template>

<script setup>
import '@vueup/vue-quill/dist/vue-quill.snow.css';
import { QuillEditor, Quill } from '@vueup/vue-quill';
import { propTypes } from '@/utils/propTypes';
import { globalHeaders } from '@/utils/request';

defineEmits(['update:modelValue']);

const props = defineProps({
	/* 编辑器的内容 */
	modelValue: propTypes.string,
	/* 高度 */
	height: propTypes.number.def(400),
	/* 最小高度 */
	minHeight: propTypes.number.def(400),
	/* 只读 */
	readOnly: propTypes.bool.def(false),
	/* 上传文件大小限制(MB) */
	fileSize: propTypes.number.def(5),
	/* 类型（base64格式、url格式） */
	type: propTypes.string.def('url')
});

const { proxy } = getCurrentInstance()

const upload = reactive({
	headers: globalHeaders(),
	url: import.meta.env.VITE_APP_BASE_API + '/resource/oss/upload'
});
const quillEditorRef = ref();
const uploadRef = ref();

const options = ref({
	theme: 'snow',
	bounds: document.body,
	debug: 'warn',
	modules: {
		// 工具栏配置
		toolbar: {
			container: [
				['bold', 'italic', 'underline', 'strike'], // 加粗 斜体 下划线 删除线
				['blockquote', 'code-block'], // 引用  代码块
				[{ list: 'ordered' }, { list: 'bullet' }], // 有序、无序列表
				[{ indent: '-1' }, { indent: '+1' }], // 缩进
				[{ size: ['small', false, 'large', 'huge'] }], // 字体大小
				[{ header: [1, 2, 3, 4, 5, 6, false] }], // 标题
				[{ color: [] }, { background: [] }], // 字体颜色、字体背景颜色
				[{ align: [] }], // 对齐方式
				['clean'], // 清除文本格式
				['link', 'image', 'video'] // 链接、图片、视频
			],
			handlers: {
				image: (value) => {
					if (value) {
						// 调用element图片上传
						uploadRef.value.click();
					} else {
						Quill.format('image', true);
					}
				}
			}
		}
	},
	placeholder: '请输入内容',
	readOnly: props.readOnly
});

const styles = computed(() => {
	const style = {};
	if (props.minHeight) {
		style.minHeight = `${props.minHeight}px`;
	}
	if (props.height) {
		style.height = `${props.height}px`;
	}
	return style;
});

const content = ref('');
watch(
	() => props.modelValue,
	(v) => {
		if (v !== content.value) {
			content.value = v || '<p></p>';
		}
	},
	{ immediate: true }
);

// 图片上传成功返回图片地址
const handleUploadSuccess = (res) => {
	// 如果上传成功
	if (res.code === 200) {
		// 获取富文本实例
		const quill = toRaw(quillEditorRef.value).getQuill();
		// 获取光标位置
		const length = quill.selection.savedRange.index;
		// 插入图片，res为服务器返回的图片链接地址
		quill.insertEmbed(length, 'image', res.data.url);
		// 调整光标到最后
		quill.setSelection(length + 1);
		proxy?.$modal.closeLoading();
	} else {
		proxy?.$modal.msgError('图片插入失败');
		proxy?.$modal.closeLoading();
	}
};

// 图片上传前拦截
const handleBeforeUpload = (file) => {
	const type = ['image/jpeg', 'image/jpg', 'image/png', 'image/svg'];
	const isJPG = type.includes(file.type);
	//检验文件格式
	if (!isJPG) {
		proxy?.$modal.msgError(`图片格式错误!`);
		return false;
	}
	// 校检文件大小
	if (props.fileSize) {
		const isLt = file.size / 1024 / 1024 < props.fileSize;
		if (!isLt) {
			proxy?.$modal.msgError(`上传文件大小不能超过 ${props.fileSize} MB!`);
			return false;
		}
	}
	proxy?.$modal.loading('正在上传文件，请稍候...');
	return true;
};

// 图片失败拦截
const handleUploadError = (err) => {
	proxy?.$modal.msgError('上传文件失败');
};
</script>

<style>
.editor-img-uploader {
	display: none;
}

.editor,
.ql-toolbar {
	white-space: pre-wrap !important;
	line-height: normal !important;
}

.quill-img {
	display: none;
}

.ql-snow .ql-tooltip[data-mode='link']::before {
	content: '请输入链接地址:';
}

.ql-snow .ql-tooltip.ql-editing a.ql-action::after {
	border-right: 0;
	content: '保存';
	padding-right: 0;
}

.ql-snow .ql-tooltip[data-mode='video']::before {
	content: '请输入视频地址:';
}

.ql-snow .ql-picker.ql-size .ql-picker-label::before,
.ql-snow .ql-picker.ql-size .ql-picker-item::before {
	content: '14px';
}

.ql-snow .ql-picker.ql-size .ql-picker-label[data-value='small']::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value='small']::before {
	content: '10px';
}

.ql-snow .ql-picker.ql-size .ql-picker-label[data-value='large']::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value='large']::before {
	content: '18px';
}

.ql-snow .ql-picker.ql-size .ql-picker-label[data-value='huge']::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value='huge']::before {
	content: '32px';
}

.ql-snow .ql-picker.ql-header .ql-picker-label::before,
.ql-snow .ql-picker.ql-header .ql-picker-item::before {
	content: '文本';
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value='1']::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value='1']::before {
	content: '标题1';
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value='2']::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value='2']::before {
	content: '标题2';
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value='3']::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value='3']::before {
	content: '标题3';
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value='4']::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value='4']::before {
	content: '标题4';
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value='5']::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value='5']::before {
	content: '标题5';
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value='6']::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value='6']::before {
	content: '标题6';
}

.ql-snow .ql-picker.ql-font .ql-picker-label::before,
.ql-snow .ql-picker.ql-font .ql-picker-item::before {
	content: '标准字体';
}

.ql-snow .ql-picker.ql-font .ql-picker-label[data-value='serif']::before,
.ql-snow .ql-picker.ql-font .ql-picker-item[data-value='serif']::before {
	content: '衬线字体';
}

.ql-snow .ql-picker.ql-font .ql-picker-label[data-value='monospace']::before,
.ql-snow .ql-picker.ql-font .ql-picker-item[data-value='monospace']::before {
	content: '等宽字体';
}
</style>
